Roller-bearing device for car-trucks.



J. 0. BARBER; ROLLER BEARING DEVICE PGB GA3 TRUCKS.-

APPLIGATION FILED .Turmm5711512.-`

l .344,81117a Patented Nov.19,1912

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ROLLER BEARING DEVICE FOR GAB, TRUCKS.

. l A A- PPLIGATIQN nmnnmzy, 191.- 1,044,847.

Patented Nov..19,1912'.

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4To all whomt mafyconcm:

UNITED-STATES PATENT cerros."

JOHN C. IBARLBIEIII', OF. CHICAGO, ILLINOIS, AiSSIGNOR T0 STANDARD CAB, TRUCK A COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION ORNEW JERSEY.

, ROLLEEBEABING. DEVICE FOB CARI-TRUCKS.

Specification of Letters Patent. .Patented NOV, 19, 1912, Applicasn fua Jung 27', 191e. 'serial Nb. 706,259.

Be it known that I, JOHN iBARBnIna citizen 'of the `nited.-.Srtates, residing at Chicago, in the county of of Illinois, have invented certain new and useful Improvements in Roller-Bearing Devices for Car-Trucks; and I do. hereby declare thelfollowing to bea full, clear, and

.eXactdescription' of the invention, such as will enable others skilled inthe art to which it appert-ains to make and use the same.

l y invention'has for its particular object the improvement of roller bearing de: vices for lateral motion trucks, and especially those wherein the truck bolster is supported by such roller bearing devices for endwise movements transversely of the truck.

Generally stated, the invention `consists of the novel construction and arrangement of parts hereinafter' described and defined in the claims.

Hitherto, in'roller bearing devices of the above noted character'it has' been the practice vto mount the 'rollers in. recessed seats formed in thecoperating. upper and lower roller bearing plates and to rely on this engagement with the ends of the rollers with ,their seats to hold the truck bolster, to which the .upper bearing plates 'are secured against sliding movements longitudinally of the rollers.` In practice, it has been found that, with the above noted prior construction, there will, nevertheless, be

some sliding movement of the top plate on therollers and this sliding, in somecases,

has Aallowed thesidespf the bolster to wear and eat into thel coperating columns.

lhave found that the above objectionable Wear may' be'overcome4 by providing the upper and lower bearing plates vwith cooperating inter-lapping wearing fiimges or lugs, which permit free movements ofthe rollers and upper -bearing plates transversely of theA truck, but which holdv the.

sides of the bolster out. of engagement with the columns. Also', I. have found that, by

forming the upper and lower bear-ing lates with stop lugs for engagement wit the rollers, the endwise travel ofthe bolster may be limited without requiring stop lugs on the truck holster for engagement with the (-olunmf. This latter feature'is highly important, because it has been found, in

many cases, that the openings in the side Cook andA State frames of the trucks do not permit "truck bolsters with lateral projecting bolster enga ging stop lugs to be applied to the trucks. In `the accompanying .drawings which I.

illustrate my invention, like characters indicate like part-s vthroughout the several views.

Referring to the drawings, E'gu-re 1 is a plan view 'of the improved roller bearing, some partsbeing brokenA away; Fig. 2 is na vlew partly in elevation and partly in section .on the line m2 w? of Fig. l; Fig. 3 isja transverse section :taken on the liney w3 w3 of Fig. l, some parts beingl shown'in full; and Fig. 4 is a horizontal sect-ion, taken through the columns and bolsterof'- the truck, and showing the improvedside bearing applied thereto, some parts being broken away.

The columns l of tbetruck ,side frame may be of the usual or any suitable construction, and the same Vstatement is true in respect .to the truck bolster 2; the said truckbolster` however, is not provided with stop "lugs for engagement with the said columns, its endwise movements trans versely of the truck being limited in Athe manner Aalready indicated.

'Ihe numerals and 4 indicate. respectively, the upper and lower roller bearing plates, and the numeral 5 indicates the inv-4 terposed lateral motion rollers. which latter work-in "depressed roller seats 6, preferably. having flat surfaces diverging from the intermediate portions of the said roller seats in a direction longitudinally7 of the truck bolster. The lower roller bearing plate -as illustrated, is designed for use as a combined spring cap and roller bearing adapted to behsupported from the truck side lframe by' suitable springs, not shown, and, in its ends having large notches '7 adapting it. to slide vertically on the-columns 1,.

The ends of the truck bolster 2,"as shown, rest directly upon shiniming blocks S which, in'. turn, are secured to the respective upper 'bearing plates 4, as shown, by means of dowel pins 9. Obviously, the upper bearing plates 4 and shinuuing blocks move with the truck bolster transversely ot" the trui-lt.

'In accordance withniy inventionT prel'ee ably designed, the lower bearing plate onits upper ture is provided with interim dicte wearing lugs or {1l-anges l0 und end or .outer wearing lugs or ianges 1l, and the up- 110 'an I' the ends of the said seats.

per bearing plate 4 is provided. with depending Wearing'llanges or lugs l2 `that work between the wearing' lugs or flanges 10 and l1 of the said lower bearing plate. The engaging surface of the said wearing flanges .10, 1l and 12 extend parallel to each other, longitudinally of the truck bolster which is atv a rightangle to the axes of the rollers 5; and all of the said wearing flanges are located between the two rollers 5. Preferably, the clearance between the wearing flanges l0, ll and l2 is such that the ends of the rollers will not be forced into engagement .with the, outer extremities of -the rollerseats G, but, in some instances. the arrangementv may be such that. the said wearing flanges will he engaged, simultaneously with the en-` gagement with the ends of the rollers with This clearance or play, however, should be such that the sides et' the truck bolster 2 will be held out of en,- gagement with the inner faces of the columns' l, and, hence, wear between said bolster and columns is prevented: In the arrangement illustrated, thev extremities of the wearing flanges 10, ll and l2 operate as stops and engage the inner sides of the rollers to limit the endwise travel of' the bolster transversely of the truck, and, for cooperation therewith, the upper and lower bearing plates o-utside of their roller seats 6 are formed with roller engaging' stop lugsl 13 and 1.4, respectively.- lith this arrangement' of stop lugs and flanges, the-rollers 5 can' travel in any direction until one of the rollers strikes the outside stop lug 13, and the other roller strikes the flanges l10 and 1l of thelower bearing plate. and the upper bearing plate can travel in'the same direction until itsflanges 1Q strike onel ofthe rollers andthe stop lug let onv one side thereof strikes the other roller.

ster is limited without the use ofstop lugs or stopdevices of' any kind on the bolster and columns.

The .construction described, 'while extremely simple and cheap to make,'ln1s, in ln'actice..been found highly efficient in railroad services.

W'hatI claim is:-

1. A` roller bearing device comprising uprollers, said hearing plates having coperating interlalnaed wearing surfaces extended transversely oit said rollers and located in- .vai-cl oi' the ends of said rollers.

2. A roller bearing device comprising upper and lower bearing plates and interposed rollers, said bearing plates having coperat- In this way, as is. evident, the lateral travel of the truck boling interlapped wearing surfaces extended 4trar'isversely of said rollers, and the said bearing plates having cooperating roller enlower bearing plates and interposed rolli ers, said bea-ring plates having cooperating interlapped wearing flanges extended transversely of said rollers and longitudinally of Y said bolster.-

4. The combination with bolster columns and a .truck bolster, of a cooperating roller bearing device comprising upper and lower bearing plates and interposed rollers, said bearing plates having coperatin `interlapped* wearingA flanges extendedv trans versely of said rollers andlongitudinally of said bolster, said bearing plates also having cooperating roller engaging' stops for limiting.. the travel of said upper bearing plate and bolster on said rollers.

5. A rollerbearing device comprising upper and lower bearing plates and interposed rollers, said bearing plates having cooperating interlapped wearing surfaces extended .transversely .of said rollers, the said cooperating wearing. flanges being located between said rollers. 5

6. Thecombination with bolster columns and a truck bolster, of -a cooperating. roller. 'bearing device comprising Vupper and lower- Vbea-ring plates Aand interposed rollers, said bearing plates 'having cooperating interlapped wearing flanges extended transversely of said rollers and longitudinally of said bolster, the said lcooperating wearing flanges being located between said rollers;

7. The combination with bolster columns and a truck bolster, of acoperating roller bearing device comprising upper and lower bearing plates and interposed rollers, said bearing plates having cooperating inter- 4lapped wearing flanges extended transversely of said rollers and longitudinallyof4 said bolster, said bearing plates also having cooperating roller engaging stopsforA l1m iting the travel of said upper bearmg plate and bolster on said'rollers, the said bolster being free from stop lugs or projections enper and lower bearing plates and interposed "n gageable with said columns.

- In testimony whereof I affix my signature Witnesses:

' L. Brinnmnl ELnNoR 01m..

Copies of this patent may be obtained :for ve cents each, by addressing the ommlssioner o t Patents, i

, i 'Washington, D. C. 

